content: package com.alinz.parkerdan.shareextension;
  
  import android.content.Context;
  import android.database.Cursor;
  import android.net.Uri;
  import android.os.Build;
  import android.provider.DocumentsContract;
  import android.provider.MediaStore;
  import android.content.ContentUris;
  import android.os.Environment;
  
  import java.io.BufferedOutputStream;
  import java.io.File;
  import java.io.FileOutputStream;
  import java.io.IOException;
  import java.io.InputStream;
  import java.util.UUID;
  
  public class RealPathUtil {
   public static String getRealPathFromURI(final Context context, final Uri uri) {
  
       final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
  
       // DocumentProvider
       if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
           // ExternalStorageProvider
           if (isExternalStorageDocument(uri)) {
               final String docId = DocumentsContract.getDocumentId(uri);
               final String[] split = docId.split(":");
               final String type = split[0];
  
               if ("primary".equalsIgnoreCase(type)) {
                   return Environment.getExternalStorageDirectory() + "/" + split[1];
               }
  
               // TODO handle non-primary volumes
           }
           // DownloadsProvider
           else if (isDownloadsDocument(uri)) {
  
               final String id = DocumentsContract.getDocumentId(uri);
               final Uri contentUri = ContentUris.withAppendedId(
                       Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));
  
               return getDataColumn(context, contentUri, null, null);
           }
           // MediaProvider
           else if (isMediaDocument(uri)) {
               final String docId = DocumentsContract.getDocumentId(uri);
               final String[] split = docId.split(":");
               final String type = split[0];
  
               Uri contentUri = null;
               if ("image".equals(type)) {
                   contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
               } else if ("video".equals(type)) {
                   contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
               } else if ("audio".equals(type)) {
                   contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
               }
  
               final String selection = "_id=?";
               final String[] selectionArgs = new String[] {
                       split[1]
               };
  
               return getDataColumn(context, contentUri, selection, selectionArgs);
           }
       }
       // MediaStore (and general)
       else if ("content".equalsIgnoreCase(uri.getScheme())) {
           return getImagePath(context, uri);
       }
       // File
       else if ("file".equalsIgnoreCase(uri.getScheme())) {
           return uri.getPath();
       }
  
       return null;
   }
  
   /**
    * Get the value of the data column for this Uri. This is useful for
    * MediaStore Uris, and other file-based ContentProviders.
    *
    * @param context The context.
    * @param uri The Uri to query.
    * @param selection (Optional) Filter used in the query.
    * @param selectionArgs (Optional) Selection arguments used in the query.
    * @return The value of the _data column, which is typically a file path.
    */
   public static String getDataColumn(Context context, Uri uri, String selection,
           String[] selectionArgs) {
  
       Cursor cursor = null;
       final String column = "_data";
       final String[] projection = {
               column
       };
  
       try {
           cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs,
                   null);
           if (cursor != null && cursor.moveToFirst()) {
               final int index = cursor.getColumnIndexOrThrow(column);
               return cursor.getString(index);
           }
       } finally {
           if (cursor != null)
               cursor.close();
       }
       return null;
   }
  
  
   /**
    * @param uri The Uri to check.
    * @return Whether the Uri authority is ExternalStorageProvider.
    */
   public static boolean isExternalStorageDocument(Uri uri) {
       return "com.android.externalstorage.documents".equals(uri.getAuthority());
   }
  
   /**
    * @param uri The Uri to check.
    * @return Whether the Uri authority is DownloadsProvider.
    */
   public static boolean isDownloadsDocument(Uri uri) {
       return "com.android.providers.downloads.documents".equals(uri.getAuthority());
   }
  
   /**
    * @param uri The Uri to check.
    * @return Whether the Uri authority is MediaProvider.
    */
   public static boolean isMediaDocument(Uri uri) {
       return "com.android.providers.media.documents".equals(uri.getAuthority());
   }
  
   public static String getImagePath(Context context, Uri uri){
      if ("content".equalsIgnoreCase(uri.getScheme())) {
  
          if (isGoogleOldPhotosUri(uri)) {
              // return http path, then download file.
              return uri.getLastPathSegment();
          } else if (isGoogleNewPhotosUri(uri) || isMMSFile(uri)) {
              // copy from uri. context.getContentResolver().openInputStream(uri);
              return copyFile(context, uri);
          }
      }
  
      return getDataColumn(context, uri, null, null);
   }
  
   /**
    * @param uri The Uri to check.
    * @return Whether the Uri authority is Google Photos.
    */
   public static boolean isGoogleOldPhotosUri(Uri uri) {
       return "com.google.android.apps.photos.content".equals(uri.getAuthority());
   }
  
   public static boolean isGoogleNewPhotosUri(Uri uri) {
      return "com.google.android.apps.photos.contentprovider".equals(uri.getAuthority());
   }
  
   public static boolean isMMSFile(Uri uri) {
      return "com.android.mms.file".equals(uri.getAuthority());
  }
  
   private static String copyFile(Context context, Uri uri) {
  
      String filePath;
      InputStream inputStream = null;
      BufferedOutputStream outStream = null;
      try {
          inputStream = context.getContentResolver().openInputStream(uri);
  
          File extDir = context.getExternalFilesDir(null);
          filePath = extDir.getAbsolutePath() + "/IMG_" + UUID.randomUUID().toString() + ".jpg";
          outStream = new BufferedOutputStream(new FileOutputStream
                  (filePath));
  
          byte[] buf = new byte[2048];
          int len;
          while ((len = inputStream.read(buf)) > 0) {
              outStream.write(buf, 0, len);
          }
  
      } catch (IOException e) {
          e.printStackTrace();
          filePath = "";
      } finally {
          try {
              if (inputStream != null) {
                  inputStream.close();
              }
          } catch (IOException e) {
              e.printStackTrace();
          }
          try {
              if (outStream != null) {
                  outStream.close();
              }
          } catch (IOException e) {
              e.printStackTrace();
          }
      }
  
      return filePath;
   }
  
  }
  